JSFiddle - React, Tailwind, and code Playground

HTML

<table>    
<tr><td>Jedi Armor1</td><td>Needs</td></tr>
<tr><td>Jedi Armor2</td><td>51</td></tr>    
</table>

CSS

.greenBg {
    background: green;
}

JavaScript

$("td: < ('50')").addClass('greenBg');